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Finding the Fourth Proportional to 6,617.35, 9,874.31 and 5,918.19

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Solution

The fourth proportional to 6,617.35, 9,874.31 and 5,918.19 is: 8,831.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.35 : 9,874.31 = 5,918.19 : x
  2. Step 2: Convert to fraction form
    6,617.35/9,874.31 = 5,918.19/x
  3. Step 3: Cross multiply
    6,617.35x = 9,874.31 × 5,918.19
  4. Step 4: Simplify right side
    6,617.35x = 58,438,042.70
  5. Step 5: Solve for x
    x = 58,438,042.70/6,617.35
  6. Step 6: Final answer
    x = 8,831.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.